I have had this model for more than 6 years. AND I have bought one for each of my grown sons as gifts. It is incredibly versatile. If fact I use mine for grinding MORE than sanding. My (now 87 year old) dad made me a gift of this way back when then supplied me with zirconium belts made by another more professional vendor. He has a sharpening service and works a few hours a week doing sharpening for hardware stores in his area. He has an older Delta version, which is built a bit better quality...